Application techniques of brushless DC motor in the measurement and instruments

被引：0
|
作者：
Zhang, H [1 ]
Feng, QB [1 ]
Wang, WB [1 ]
机构：
[1] Hefei Univ Technol, Dept Precis Instrument, Hefei 230009, Peoples R China
来源：
PROCEEDINGS OF THE FIRST INTERNATIONAL SYMPOSIUM ON INSTRUMENTATION SCIENCE AND TECHNOLOGY | 1999年
关键词：
D O I：
暂无
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Three phase brushless DC (BLDC) motors are good candidates because of their high efficiency capability and easy to drive features. In this paper, BLDC motor control system model is created and analyzed. The sensorless rotor position technique developed detects the zero crossing points of Back-EMF induced in the motor windings. The phase Back-EMF zero crossing points are sensed while one of the three phase windings is not powered. The obtained information is processed in order to control the phase voltage, using Pulse Width Modulation (PWM). The hardware structure design using MCU is discussed, and software program flow of the BLDC motor control system is presented.
引用
收藏
页码：655 / 659
页数：5
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